Fatigue-free behavior of highly oriented Bi3.25La0.75Ti3O12 thin films grown on Pt/Ti/SiO2/Si(100) by metalorganic solution decomposition

被引:136
作者
Chon, U
Yi, GC [1 ]
Jang, HM
机构
[1] Pohang Univ Sci & Technol, Dept Mat Sci & Engn, Pohang 790784, South Korea
[2] Pohang Univ Sci & Technol, Natl Res Lab Ferroelect Phase Transit, Pohang 790784, South Korea
[3] Res Inst Ind Sci & Technol, Pohang, Kyungbuk, South Korea
关键词
D O I
10.1063/1.1333686
中图分类号
O59 [应用物理学];
学科分类号
摘要
Fatigue-free and highly c-axis oriented Bi3.25La0.75Ti3O12 (BLT) thin films were grown on Pt/Ti/SiO2/Si(100) substrates using metalorganic solution decomposition. Films annealed above 500 degreesC were characterized by strong c-axis preferential growth with an in-plane alignment of grains. The BLT film capacitors with a Pt top electrode showed excellent ferroelectric properties. The remanent polarization (2P(r)) and the coercive field (E-c) were in the range of 26-28 muC/cm(2) and 50-75 kV/cm, respectively. More importantly, the BLT capacitors did not show any significant fatigue up to 3.5x10(10) read/write switching cycles at a frequency of 1 MHz. (C) 2001 American Institute of Physics.
引用
收藏
页码:658 / 660
页数:3
相关论文
共 15 条
[1]  
CHON U, IN PRESS J MAT RES
[2]   FATIGUE-FREE FERROELECTRIC CAPACITORS WITH PLATINUM-ELECTRODES [J].
DEARAUJO, CAP ;
CUCHIARO, JD ;
MCMILLAN, LD ;
SCOTT, MC ;
SCOTT, JF .
NATURE, 1995, 374 (6523) :627-629
[3]  
DEY SK, 1987, J AM CERAM SOC, V7, pC295
[4]   FATIGUE AND SWITCHING IN FERROELECTRIC MEMORIES - THEORY AND EXPERIMENT [J].
DUIKER, HM ;
BEALE, PD ;
SCOTT, JF ;
DEARAUJO, CAP ;
MELNICK, BM ;
CUCHIARO, JD ;
MCMILLAN, LD .
JOURNAL OF APPLIED PHYSICS, 1990, 68 (11) :5783-5791
[5]   GROWTH OF HIGHLY ORIENTED BI4TI3O12(104) THIN-FILMS ON AL2O3(0001) SUBSTRATES USING PULSED-LASER DEPOSITION [J].
JO, W ;
NOH, TW .
APPLIED PHYSICS LETTERS, 1994, 65 (22) :2780-2782
[6]   Preparation of highly oriented bismuth titanate thin films by sol-gel process [J].
Kato, E ;
Watanabe, Y ;
Tsukamoto, T ;
Tsuchiya, T .
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, 1996, 104 (11) :1015-1018
[7]   Device physics - Memories are made of ... [J].
Kingon, A .
NATURE, 1999, 401 (6754) :658-659
[8]  
Li TK, 1996, APPL PHYS LETT, V68, P616, DOI 10.1063/1.116486
[9]   TOPOTACTICAL REACTIONS WITH FERRIMAGNETIC OXIDES HAVING HEXAGONAL CRYSTAL STRUCTURES .1. [J].
LOTGERING, FK .
JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1959, 9 (02) :113-+
[10]   Lanthanum-substituted bismuth titanate for use in non-volatile memories [J].
Park, BH ;
Kang, BS ;
Bu, SD ;
Noh, TW ;
Lee, J ;
Jo, W .
NATURE, 1999, 401 (6754) :682-684